|Location Map ( geo)|
|To:||Bassett's Pole (SP150997)|
|Distance:||8.2 miles (13.2 km)|
|Meets:||A4148, B4154, A452, B4138, A454, A5127, A453|
|Route outline (key)|
The road's current western terminus is on the A4148 Walsall ring road; however, it originally continued further west to start on the A34 Birmingham Road but both roads are now unclassified. Heading east, the B4151 quickly seems to enter open country, although it remains in the Metropolitan Borough.
After crossing the A452 at traffic lights the B4151 reaches a T-junction on the B4138. It turns left here and multiplexes along that road for a short distance along the edge of Sutton Park. At the next roundabout the B4151 regains its number and heads east once more, still along the edge of Sutton Park. At the end of the park there is a skewed crossroads where the A454 is crossed at traffic lights. Shortly afterwards the road goes over the Cross City Line before meeting the A5127 (former A38) at a roundabout.
On the far side of the roundabout the B4151 continues through the outer suburbs of Sutton Coldfield before entering open country once more. It goes under the M6 Toll and A38 in quick succession before crossing the original line of the north-south road, which was numbered A446 and downgraded with the coming of the A38. The B4151 ends shortly afterwards on the A453 just to the east of the Bassett's Pole roundabout.